Is Killing Floor co-op?

Yes, Killing Floor supports co-op.

Does Killing Floor have PvP?

Steam's store page doesn't flag a PvP category, but Killing Floor is tagged Team-Based — it's player-versus-player.

Do we both need to own Killing Floor to play together?

Yes. Killing Floor is played online, so each player needs their own copy on their own Steam account (or PC Game Pass where it is offered). Steam Families can share a library, but two people cannot play the same shared game at the same time.

How many people play Killing Floor?

About 224 players were in-game when this page's data was last refreshed (2026-09-09).

Ready Up — what game do we play?Compare two Steam libraries →

Multiplayer games › Shooter › Co-op horde shooter

Is Killing Floor multiplayer or co-op?

Yes — co-op and PvP. Killing Floor is a co-op horde shooter game released in 2009, 95% positive on Steam (67,472 reviews), with 224 playing right now. $19.99 on Steam.

Co-opSingle-player tooShooter · Co-op horde shooter

6-player co-op survival horror at its finest! Free updates, free special events and a ridiculous amount of fun!

How Killing Floor plays with friends, according to Steam

Online co-op: Not listed on Steam
Local / split-screen co-op: Not listed on Steam
Online PvP: Not listed on Steam
LAN play: Not listed on Steam
Cross-platform multiplayer (Windows / Mac / Linux): Yes
Single-player mode: Yes
Mods: Steam Workshop

Steam's own category list for the game, as of 2026-09-09. "Not listed" means the store page does not claim that mode; community mods or Remote Play can still add it.

Steam tags: FPS, Zombies, Co-op, Survival, Horror, Multiplayer, Action, Online Co-Op

Do you and a friend both own Killing Floor?

Ready Up compares two Steam libraries and shows every multiplayer game you both have — including whether Killing Floor is one of them — then helps you pick tonight's game with a weighted roll or a bracket.

Or open the Steam store page.

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Tired of Killing Floor? The Swap tab finds the closest unowned games of the same type that are newer or rated higher.

Quick answers

Is Killing Floor co-op?: Yes, Killing Floor supports co-op.
Does Killing Floor have PvP?: Steam's store page doesn't flag a PvP category, but Killing Floor is tagged Team-Based — it's player-versus-player.
Do we both need to own Killing Floor to play together?: Yes. Killing Floor is played online, so each player needs their own copy on their own Steam account (or PC Game Pass where it is offered). Steam Families can share a library, but two people cannot play the same shared game at the same time.
How many people play Killing Floor?: About 224 players were in-game when this page's data was last refreshed (2026-09-09).

Ready Up is a free tool: enter two Steam usernames and it lists the multiplayer games you both own, runs a bracket to pick one, and suggests new co-op games that fit how you both play. Ratings, tags and player counts from Steam and SteamSpy; page updated 2026-09-23. Powered by Steam — not affiliated with or endorsed by Valve Corporation or Microsoft. Ready Up is a Somebody Decide program. How the data works · Legal & privacy · All types · Game Pass